Improvement in gang-ploughs



@eine ltat-ies @anni @ffice HORACE L. PERRY, OF AURORA, NRW YORK.

.Letters Patent Nb. 71,053, dated November 19, 1867.

u TO ALL WHOM IT MAY CONCERN:

Be it known that I, HORACE L. PERRY, of Aurora, in the county of Erie,und State of New York, have invented certain new and useful Improvementsin Gang-Ploughs; and I do hereby declare that the following is a fulland exactdescription thereof, reference being had to the accompanyingdrawings, making a part of this specification, in which- Figure I is aside elevation.

Figure II is a front elevation.

This invention is an additional improvement of my improved gang-plough,for which Letters Patent were duly granted April 30, 18,67, No. 64,358,to which reference is hereby made, and consists in hinging the mainframe A to the axl'e upon one side, and making the other side verticallyadjustable in such manner that, no matter at what angle the axle of themachine may be inclined, the main frame, as well as the plough-framethereto attached, can be adjusted and operated upon a level, for thepurpose oi better adapting the machine to its work in all contingencieswhich may possibly arise. Second, in making and providing one or boththe suiicient for the purpose of this application. i

A, main frame of the machine; B B supporting-wheels; C, plough-frame,hinged to main frame at c; D ploughs; E E, pinions, and Gr G hingedracks for raising Aand lowering the rear end of the plough-frame' Hcog-wheel and H stop-lcver, both constituting a device i'or retainingthe plough-frame in any desired position. The main frame A is hinged tothe axle, as shown at K, upon that end thereof which is supported by thewheel of larger diameter. The opposite side of the main frame is notmade fast to the axle, but may be raised and lowered, by means of acurved rack, L, connected to the axle, and projecting upwardlytherefrom, and a pinion, M, supported upon the main frame. The pinion Mcarries a hand-lever, m', which is within convenient reach of thedriver, so that he can grasp the same at any time while the machine isoperating, and by bearing upon said lever revolve the pinion sucientlyto raise or lower the frame upon that side of the axle, for the purposeoi bringing it into a level position. A stop-pin, it, or'otherequivalent device, is used for retaining that side of' the frame at anydesired elevation.

It will be seen upon examining the invention patented by -ine April 30,1867, as hereinbefore mentioned, that the two supporting-wheels are madeof unequal diameter, so that the larger one may travel in the furrow4last made, while the smaller one travels upon the unbroken ground;hcnce the main frame, which is made fast to the axle, is always level,while 'one wheel travels in the furrow. But before a furrow has beenmade the main frame, and the plough-frame thereto attached, cannot belevel, because the wheelsare of unequal size, and both have to travelupon the unbroken ground. n

My improvement obviates this diiculty, and furnishes a machine which isbetter' adapted to the work, inasmuch as the main frame and plouglis mayat all times be adjusted and move upon a level, whether one of thewheels travels in a. furrow or not.

It will readily be seen that my improvement, herein set forth, may beused either in connection with a gang-plough having wheels of unequaldiameter, or it may be used as a substitute or equivalent for suchdifference in the size .of the wheels.

O represents a rib or iiange formed upon the rim of' one or both ofthewheels B B, and projecting radially therefrom. It may be located uponeither side ofthe face of the rim, or in the middle, as maybe desired.The object of this rib or flange is to guide the machine upon a straightline, and prevent its slipping or sheering oil' sidewise, to whichmovement a slight tendency exists on account of` the ploughs D having noland-sides, es is fully described in my said original patent.

What I claim` as my invention, and desire to secure by Letters Patent,is*

l. In a gang-plough having a main frame, A, and a plough-fraine C,substantially as herein described, I claim hinging the main frame A atone side upon the axle, so that it may be levelled in the manner and forthe purpose set forth.

2. I claim the rib or iange O, formed upon thc supporting-wheelssubstantially as and for the purpose setA forth.

HORACE L. PERRY.

Witnesses:

B. H. MUEHLE,` W. H. FoRBUsH.

